Classes vs Project - in winery harvest cost tracing

I am setting up QB for my startup winery (mainly wine production and online sales eventaully)  I need to track costs and revenues as well as investments for winery itself (tanks, barrels, equipment) and also wine batches for each harvest year.  So I could match it with is revenuew in 2-3 years time.  I was wondering weather I should be using classes or project functions to capture harvest costs (some of the costs will be individaul invoices for the year, others allocated cost of barrel-equipment investsment and also allocation of utility bills).  I would applrecate help of ideas-shared expereince from anyone with winery or simalar sector experience